Quick answers
- Which hospitals does Jonathan A. Claus work at?
- Medicare's official clinician data lists Jonathan A. Claus at 5 hospitals: Bertrand Chaffee Hospital, Brooks-Tlc Hospital System, Inc, Erie County Medical Center, Kaleida Health and Olean General Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Jonathan A. Claus see patients?
- Medicare's clinician data lists 2 practice locations, including Buffalo, NY. Call before your visit to confirm the address.
- What is Jonathan A. Claus's specialty?
- Medicare lists Infectious Disease as the primary specialty, and also Internal Medicine.
- Does Jonathan A. Claus accept Medicare assignment?
- Yes. Medicare's clinician data says Jonathan A. Claus accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- Does Jonathan A. Claus offer telehealth?
- Medicare's clinician data says Jonathan A. Claus offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Jonathan A. Claus?
- (716) 859-5600, as listed in official Medicare / NPI Registry data.
- What is Jonathan A. Claus's NPI number?
- 1184852113. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Jonathan A. Claus works
Medicare's Facility Affiliation Data lists Jonathan A. Claus at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Bertrand Chaffee HospitalSpringville, NY · Acute Care Hospital · CCN 330111
- Brooks-Tlc Hospital System, IncDunkirk, NY · Acute Care Hospital · CCN 330229
- Erie County Medical CenterBuffalo, NY · Acute Care Hospital · CCN 330219
- Kaleida HealthBuffalo, NY · Acute Care Hospital · CCN 330005
- Olean General HospitalOlean, NY · Acute Care Hospital · CCN 330103
Practice locations
Addresses where Jonathan A. Claus is enrolled with Medicare (CMS data updated 2026-10-02).
- 100 High StBuffalo, NY 14203 (716) 859‑5600
- 462 Grider StBuffalo, NY 14215 (716) 898‑3000
Group practices
Medicare enrollment lists Jonathan A. Claus as a member of these groups (CMS data updated 2026-10-02).
- Erie County Medical Center Corporation319 clinicians in the group
- Academic Medicine Services, Inc.115 clinicians in the group
Specialties
- Infectious Diseaseprimary
- Internal Medicinealso
Other infectious disease doctors in Buffalo
Clinicians with the same Medicare primary specialty in Buffalo, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2009 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1184852113 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians